Valve.



JAMESON M. BUEEOWs AND HENRY E. TEENAEY, OE NEWKIEK, OKLAHOMA.

VALVE. n

To all lwhom t mag/Y'o'onoern.'

Be it known'that we, JAMESON M. BUR- Rows and HENRY F. TRENARY, citizens of the United States, residing'at' Newkirk, in the county of Kay andState ofy Oklahoma, have invented* new land usefull'mprovements in Valves, of which the following is a specilication. f L

This invention relates to a-` valve which I may be used in connection with gas pipes and more particularly to a valvewhich is operated by the pressure ofthe gas within the pipes to which the valve is applied.

The primary object of the invention .is to provide a valve which` when connected with al gas main in advance of the burners ywill be normally held in open positionfby the pressure ofl the! gas within the Vmain,but upon the diminution of gas pressure within position by gravity and held in such position by a spring oontrolledlatch connected therewith, thus preventing the escape of gas through the burner tips when .the pressure again increases in the gas main.

Another object of the invention is to pro- -vide a valve `or'this character. having connected therewith a 'receptacle 'in which weights may be placed to increase the weightof the valve and cause thesame to act in opposition to the gas pressure within the gas main to which the valve is: applied, thus adapting the valve for usein either high or low pressure systems. l

A further ,object of the' invention is to provide a valve for connection with gasV mains which is so constructed 'that it ob- The preferred embodiment .of theinven-` tion has been illustrated in the accompany-V ing drawing, although *no` restriction 1s necso essarily made to the precise'details of lcon the pipe the valve will'be moved to closed with a gas main 3.'

' Opening 15.;

Specification of Letters Patent. Y Patented July 16, 1918.

Applicationl filed June 13, 1916. Serial N o. 103,523. v I

struction therein shown, as changes, alterations, and modifications, within the scope ofl the claim may be resorted to when desired.

Like characters of reference denote corre- Y sponding parts, throughout the several views constructed in accordance with the invention and showing the same applied to a gas main and having connected therewith a burner arm. f

Fig. 2 is a view similar to Fig. 1 showing the valve held in open position by the gas pressure within the main.

Fig. 3 is a view similar to Fig. 2 showing the valve' in closed position and the gas cut off from the tip on the burner arm. 4

Fig. 4 is a horizontal section on the line 4'-4 of Fig. 2. f f

Fig. 5 is a horizontal section on the line 5-5 of Fig. 3.

Referring now to the-drawing'. in detail,`

the numeral 1V designatesa 'valve casing which is cylindrical in shape'and interiorly threaded at one end, as at 2, for connection The valve casing l'is further provided'on its outer peripheral face between its ends with an enlargement or boss 4 having formed therein a threaded opening 5 adapted to receive the end `of a burner arm 6 having connected therewith a burner tip 7.

The other end ofthe valve casing 1 is offset, as'atS, to form an annular shoulderv 9 andan upstanding and internally threaded annularlange 10, said shoulderl forming a seat for a packing ring 11.v

A disk or cap 12 has its peripheral surface threaded, as at 13, to engage with the threads on the inner' face 'of the annular flange 10, so that the cap or disk is removably connected with the valve casing 1 and` provides a closingv cap for the open end of the valve casing. .n .v Y

An extension 14 is provided upon the disk 12 and thesaid extension lhas angular `faces which may be engaged by awrenchv for applying or removing the' disk 12. The said extension 14 is provided at one side withan greater diameter than the disks 19 and 20',`

said packing being clamped by the disks 19 and 2O through the medium-of a nut 22v adjustably mounted on the threaded extension 18, said disks and packin forming a valve head 23 movable longitudinally of the valve casing 1. A

The valve stem 17 has formed. therein be.

tweenits ends a notch 24- above lwhich is re- Y movably,connected with the stem 17 a weight boX 25 having a removable cover 26, said boX being adapted to receive lead shot, or the like, to increase or decrease thev weight of the valve-23. I

connected with the latch bar 27 adjacent the A latch bar 27 which is passed'through the recess 16 has one end pivotally connected with the disk or cap 12 and has its other end formed with anaoperating handle 28.

A 'contractile spring 29 has Vone terminal operating handle 28 and its other end with a stud 30 on the cap or disk12, said spring lnormally tending tohold one side edge of the latch bar against the valve stem 17, so that when the notch V24 in the valve stem has been brought into registration with the latch bar in a manner which will be presentlyldescribed, the latch bar will be received Y in said notch to lock the valve against slidingmovement'within the valve casing 1.

Acoil spring 31 encircles the valve stem 17 above the disk 19 and has one end thereof arranged to contactwith the cap 12 when Y the valvezis in 'open position, saidspring 81 servingV as a cushion for the valve and preventing the same from sticking within ythe casing 1.

' When the valve casing 1 has been connect- Ved with a gas main and with a burner arm as shown in Fig. 2V in the-drawing, the gas pressure within the main will cause the valve to assume the position within the casing shown inFig. 2in the drawing provided the latch bar 27 has been disengaged from the notch- 24 inthe valve stem 17. Y

-When the Vvalve in the casing 1 is in the Y position-shown in Fig. 2 in the drawing, it Willv be seen that the gas from the main can pass through the burner arm and out through the tip associated therewith, vso that thegas may be ignited at the tip for illuminating purposes. l l

When the valve in the casing 1 is in the position shown in Fig. 2 in the drawing and gas ignited at the burner tip, should the gas pressure in the main decrease so that the flame at the burner tip would become eX-V tinguished the decrease in gas'pressure in the main permits the valve to move to the position-shown in Fig' in thedrawing, thus cutting oli. coinn'iunication between the burner tip and the gas main. f

As the valve head 23 moves downwardly, the notch 24 in the stem 17 is brought into registration with the latch bar 27 which under the influence of the spring BOismoved within the notch 24 and locks the valve against movement, so that when the pressure in the gas main-again increases the gasis prevented from escaping through the burner arm and tip and illing theapartment in which the xture is located with gas. l

When the valve has been locked in closed position by the latch bar and ythe pressure in the gas mainl again increases it is necessary to manually release the latch bar from the notch r24. in the stem 17 before the gas pressure in the gas main can move the valve to a position in the casing as shown in Fig. 2 in the drawing.

Vhen the gas pressure in the main is normal and .it is desired to extinguish the flame at. the burner tip, pressure may be eX- erted on the weight box by meansof the finger to move the valve :head 23 below the opening 5 in the casing, thus extinguishing the iiame at the burner tip and the valve may be locked in this position through the medium of the latch bar 27 thus obviating the necessity of providing the'burner arm with the usual valve for controlling the flow of gas to the tip. l Y

It will, of course, be understood that when the gas pressure is normal andv it is desired to ignite the gas at the tip andthe valve is in a position to prevent the gas from gaining access to the burner arm, the latch bar 27 may be manually released from the notch 24 at which time the valve will automatically move to the position shown in Fig. 2 in the drawing, kthus establishing communication between the gas main and burner tip. A

From the foregoing descriptiointaken in connection with the accompanying drawing, it is at once apparent that a valve for gas mains has been provided which is simpleiin construction, inexpensive of manufacture,

the invention, what stem extend-ing exteriorly of said casing'g` through said opening, aY spring controlled bar pivotally connected with `said cap en- .gageable with saidVv stem to lock the valve4 against movement under pressure, and an gaged with said stem, and a receptacle extension on the top of said cap arranged mounted on the outer end of the stem and concentrically of said opening having a slot adapted to engage said extension. 10 therein through which said bar is passed In testimony whereof We aix our signa- 5 whereby undue strain is prevented from betures.

inig imposed on the pivotal connection be- JAMESON M. BURROWS. tween the bar and cap When said bar is en- HENRY F. TRENARY.

Copies -of this patent may be obtained for ive cents each, by addressing the Commissioner of Patents, Washington, D. C. 

